I'm so pissed off by this, so my computer was restarted due to automatic updates. So, I was watching it and it was stuck on 67% for a while then 77%. I take my eye off of it and I look over. "We couldn't complete the updates. Undoing changes. Don't turn off your computer." It's been stuck like that for 15 minutes now. What should I do? I'm on Windows 8.1.